Top 10+ Flutter App Development Companies in London | Flutter App Developers London 2026
Last Updated 05th September 2026 | Category: Top App Development FirmsThe List of Top 10+ Flutter App Development Companies In London | Top Flutter App Developers London September 2026
1. Hyperlink InfoSystem
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Details
| Founded: | 2011 |
|---|---|
| Hourly Rates: | < $25 |
| Employees: | 1000+ |
| Avg. Project Cost: | GBP 75,836+ |
| Ratings: |
5.0
497 Reviews
|
Since 2011, Hyperlink InfoSystem has operated as a technology services provider. Hyperlink InfoSystem focuses on Mobile App Development. Hyperlink InfoSystem employs 1000+ people. Clients can expect pricing around < $25/hr, with projects averaging about $100,000. Overall, Hyperlink InfoSystem is one of the options worth shortlisting for a technology project.
Details
| Founded: | 1997 |
|---|---|
| Hourly Rates: | $50 - $99 |
| Employees: | 10 - 49 |
| Avg. Project Cost: | GBP 75,836+ |
| Ratings: |
4.5
7 Reviews
|
Red C London is a technology company founded in 1997. Their core services include Mobile App Development. With 10 - 49 people on staff, Red C London can take on projects of varying size. Typical hourly rates run around $50 - $99/hr, with an average project cost near $2,500,000. This profile is a starting point — reach out to Red C London directly to discuss project specifics.
Details
| Founded: | 2016 |
|---|---|
| Hourly Rates: | $50 - $99 |
| Employees: | 10 - 49 |
| Avg. Project Cost: | GBP 37,918+ |
| Ratings: |
4.1
7 Reviews
|
Glance Creative Ltd. is a technology company founded in 2016. Their core services include Mobile App Development. Its team includes 10 - 49 specialists working across design, development, and delivery. Clients can expect pricing around $50 - $99/hr, with projects averaging about $100,000. This gives a quick snapshot of what to expect when working with Glance Creative Ltd.
Details
| Founded: | 2010 |
|---|---|
| Hourly Rates: | N/A |
| Employees: | 10 - 49 |
| Avg. Project Cost: | GBP 7,584+ |
| Ratings: |
4.8
6 Reviews
|
Since 2010, xDesign has operated as a technology services provider. The company's main offerings are Custom Software Development. The company operates with a team of 10 - 49 professionals. Projects with this company average about $50,000. These details offer a useful starting point when evaluating xDesign.
Details
| Founded: | 2015 |
|---|---|
| Hourly Rates: | $150 - $199 |
| Employees: | 2 - 9 |
| Avg. Project Cost: | GBP 1,895,888+ |
| Ratings: |
4.6
7 Reviews
|
The Munro Agency has been in business since 2015, delivering technology projects for clients. The company's main offerings are Mobile App Development. The Munro Agency employs 2 - 9 people. Typical hourly rates run around $150 - $199/hr, with an average project cost near $25,000. This gives a quick snapshot of what to expect when working with The Munro Agency.
Details
| Founded: | 2009 |
|---|---|
| Hourly Rates: | N/A |
| Employees: | 10 - 49 |
| Avg. Project Cost: | GBP 3,791,775+ |
| Ratings: |
4.8
7 Reviews
|
Calvium is a software development company that turns ideas into working products. Their core services include Mobile App Development. The company operates with a team of 10 - 49 professionals. Projects with this company average about $10,000. These details offer a useful starting point when evaluating Calvium.
Details
| Founded: | 2017 |
|---|---|
| Hourly Rates: | $50 - $99 |
| Employees: | 10 - 49 |
| Avg. Project Cost: | GBP 3,791,775+ |
| Ratings: |
4.4
6 Reviews
|
Metryus is a technology company founded in 2017. Their core services include Mobile App Development. Metryus employs 10 - 49 people. Clients can expect pricing around $50 - $99/hr, with projects averaging about $50,000. This gives a quick snapshot of what to expect when working with Metryus.
Details
| Founded: | 2010 |
|---|---|
| Hourly Rates: | N/A |
| Employees: | 2 - 9 |
| Avg. Project Cost: | GBP 3,791,775+ |
| Ratings: |
4.8
6 Reviews
|
Cyberfrog Design is a software development company that turns ideas into working products. Their core services include Mobile App Development. With 2 - 9 people on staff, Cyberfrog Design can take on projects of varying size. Projects with this company average about $10,000. This profile is a starting point — reach out to Cyberfrog Design directly to discuss project specifics.
Details
| Founded: | 2007 |
|---|---|
| Hourly Rates: | N/A |
| Employees: | 10 - 49 |
| Avg. Project Cost: | GBP 37,918+ |
| Ratings: |
4.7
8 Reviews
|
Since 2007, Inspired Agency has operated as a technology services provider. Their core services include Mobile App Development. Inspired Agency employs 10 - 49 people. The average project on record costs around $25,000. This gives a quick snapshot of what to expect when working with Inspired Agency.
Details
| Founded: | 2007 |
|---|---|
| Hourly Rates: | $100 - $149 |
| Employees: | 10 - 49 |
| Avg. Project Cost: | GBP 7,584+ |
| Ratings: |
4.8
6 Reviews
|
Audacia works with clients to plan, build, and ship digital products. Audacia focuses on Mobile App Development. Audacia employs 10 - 49 people. Typical hourly rates run around $100 - $149/hr, with an average project cost near $5,000,000. This gives a quick snapshot of what to expect when working with Audacia.
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Got questions about our specialized technology solutions? We have the answers to help you make informed decisions.
Start by writing down what "done" actually looks like for your project — the core features, the platforms it needs to run on, and a rough budget ceiling. From there, narrow your list to App Development agencies in London whose past work matches that scope, and put each one through the same first conversation: a real problem from your project, presented cold, to see how they think rather than how they pitch. The App Development company in London that asks the sharpest follow-up questions is usually the one worth a second meeting.
Working with a App Development company in London usually comes down to a straightforward trade: strong technical talent at a price point that's hard to match in higher-cost markets, without the coordination overhead of a fully remote, no-local-presence vendor. Teams based in London tend to understand both the practicalities of international client work and the local hiring market, which shows up in smoother onboarding and fewer surprises around contracts and invoicing.
The firms that rank well among App Development companies in London typically have verifiable client references, a track record of finished (not just started) projects, relevant certifications, and consistently positive feedback across multiple engagements — not just one standout case study. Self-reported claims with nothing to back them up carry little weight here; documented outcomes do.
Yes — you can filter App Development companies in London by budget range, hourly rate, team size, and area of specialization before reaching out to anyone. Pairing those filters with review scores usually gets you to a realistic shortlist in a few minutes instead of manually working through every listing in the category.
Skip past the summary and go straight to the portfolio examples, the full text of client reviews (not just the star rating), and how long the company has been operating. Reviews that mention specific, measurable results — a faster checkout flow, a successful migration, fewer support tickets — tell you far more than generic praise. It's also worth checking whether the App Development firm in London responds to reviews at all, since that habit tends to mirror how they handle feedback during an actual project.
Bring a real problem from your own project to a discovery call and see how the team engages with it — the quality of their follow-up questions tells you more than any slide deck. Ask to see actual code from past work, not just screenshots of the finished product, and look for evidence of technical writing, open-source contributions, or conference talks, which are harder to fake than a polished portfolio page. A App Development company in London with genuine depth won't be shy about any of this.
It depends on your business goals, but a App Development company in London that's serious about outcomes will tie their KPIs to yours — activation rate, feature adoption, conversion, churn, revenue per user — rather than reporting on generic delivery metrics like story points closed. Get analytics wired in from the start so there's a real feedback loop between what gets built and what actually moves the business, and agree on which numbers matter before the project kicks off.
Most experienced App Development companies in London have done this kind of integration many times over — Salesforce, HubSpot, Zoho, and similar platforms are common enough that it's rarely a novel problem. What matters more is giving your App Development partner in London a full, honest picture of your current stack upfront, so the integration is built cleanly instead of patched together after the fact.
Platforms like Clutch and GoodFirms are a good starting point, since they require some independent validation of the work described. A strong case study from a App Development company in London spells out the original problem, what was actually built, and a measurable result — not just a screenshot and a paragraph of praise. Match case studies to your own industry and scale wherever you can; a great result in an unrelated space tells you less than it seems to.
The sweet spot for value tends to be mid-size App Development companies in London — big enough to have real process and accountability, small enough to keep overhead (and therefore price) reasonable. These firms usually can't compete with large agencies on brand name, so they compete on transparent, milestone-based pricing and a portfolio that speaks for itself. Ask to see completed work at roughly your budget level before assuming a firm is a fit.
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